<template>
  <el-menu :collapse="isCollapse" default-active="2" class="el-menu-vertical-demo" background-color="#545c64" text-color="#fff" active-text-color="#ffd04b">
    <el-menu-item :index="item.path" v-for="item in noChildren" :key="item.path" @click="clickMenu(item)">
      <i :class="'el-icon-' + item.icon"></i>
      <span slot="title">{{ item.label }}</span>
    </el-menu-item>

    <el-submenu index="index" v-for="(item, index) in hasChildren" :key="index">
      <template slot="title">
        <i :class="'el-icon-' + item.icon"></i>
        <span>{{ item.label }}</span>
      </template>
      <el-menu-item-group>
        <el-menu-item :index="subItem.path" v-for="(subItem, subIndex) in item.children" :key="subIndex" @click="clickMenu(subItem)">
          <i :class="'el-icon-' + subItem.icon"></i>
          <span>{{ subItem.label }}</span>
        </el-menu-item>
      </el-menu-item-group>
    </el-submenu>
  </el-menu>
</template>
<script>
export default {
  computed: {
    noChildren() {
      return this.menu.filter(item => !item.children)
    },
    hasChildren() {
      return this.menu.filter(item => item.children)
    },
    isCollapse() {
      return this.$store.state.tab.isCollapse
    },
    menu() {
      return this.$store.state.tab.menu
    }
  },
  methods: {
    clickMenu(item) {
      this.$router.push({ name: item.name })
      this.$store.commit("selectMenu", item)
    }
  },
  data() {
    return {}
  }
}
</script>
<style lang="scss" scoped>
.el-menu {
  height: 100%;
  border: none;
}
.el-menu-vertical-demo:not(.el-menu--collapse) {
  width: 200px;
  min-height: 400px;
}
</style>
